US1858107A - Faceplate - Google Patents

Description

May 10, 1932.

A. H. NERO FACEPLATE Filed Feb. 27. '1951 Tickl Patented May 10, 1932 UNITED STATES ARVID H. NERO, OF WEST HARTFORD, CONNECTICUT, ASSIGNOR TO THE. ARROW-HART PATENT oFFics & HEGEMAN ELECTRIC COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTICUT FACEPLATE Application filed February 27, 1931. Serial No. 518,829.

This invention relates to face plates 'of the kind commonly used in connection with a signal lamp which is mounted in a wall box. It has been common practice to provide such face plates, whether metallic or non-metallic, with a jewel or bulls eye of red transparent material, such as glass, through which the light of the signal lamp shines to indicate when current is flowing through a circuit.

It is an object of my invention to devise a more satisfactory and more economical means and method for mounting a jewel or bulls eye in a face plate of insulating material. Other objects and advantages of my invention will appear as it is described in connection with the accompanying drawings In the drawings 2- Figure 1 is an elevation view of the front of my face plate;

Figure 2 is a transverse section view taken on line 2-2 of Figure 1;

Figure 3 is an elevation view of the rear of my face plate;

Figure 4 is a transverse section view taken on line 44 of Figure 3;

Figure 5 is a broken detailed view of the metal securing ring used in my invention.

Referring to the drawings, the invention is shown in connection with a rectangular face plate of the size and dimensions common in the art and having a lower aperture 12 for reception of the contact face of a flush receptacle (not shown). A jewel 16 is mounted in an aperture 18 in the plate 10, above the receptacle aperture 12.

The jewel is preferably of red glass but may be of any other suitable material. It is, generally speaking, disc shaped, with a convex front face 16a, a rounded edge 16?), and a flat rear face 160. In making my face plate, a flanged metal collar 20, preferably of brass, is embedded in the plate around the circular aperture 18, during the molding of the plate. The flange 24 and only a portion of the collar proper are embedded in the plate, thus leaving a portion 26 of the collar projecting from the rear of the plate. The collar is of approximately the same diameter as the periphery of the jewel so that the jewel may he slipped into the collar. In order to prevent the jewel from slipping the whole Way through the collar, a beveled shoulder 28 is formed integral with the plate around the periphery of the collar aperture 18 adjacent the front face of the plate. This reducesthe diameter of that aperture at the front of the plate to less than that of the jewel. Thus the jewel is slipped into the collar from the rear in such a way as to cause its convex portion to extend beyond the front face of the plate. The edge 1% of the jewel willlie upon the beveled shoulder 28 of the plate 10 when the jewel becomes seated in this position. The rearwardly projecting portion 26 of the collar may then be bent over the edge of the jewel thereby preventing the jewel from sliding back out of the collar. Since the beveled shoulder 28 prevents the jewel 16 from coming out of the plate at the front; and the collar 20 prevents it from coming out the rear, the jewel is firmly held in the plate.

Thus it will be seen that I have provided a simple and economical method and means forsecurely mounting a jewel in a face plate of, insulating material without leaving any metal showing and by employing but a single part in addition to the face plate itself.

It should be understood that my invention is not limited to the face plate in connection with which it is shown herein merely by way of illustration.

I claim 1. A face plate for electrical apparatus, comprising an apertured plate of insulating material, a metallic collar embedded in said plate around the aperture, a jewel located within said collar, a portion of said collar being turned over and engaging said ewel comprising an apertured plate of insulating material, a shoulder formed integral with the plate around the aperture adjacent one face of the plate, a metallic collar embedded in said plate and having a portion extending from the other face of said plate, and a jewel adapted to fit in the collar, said'portion being turned over upon said jewel to hold it in position.

4; A face plate for electrical apparatus, comprising anapertured plate of insulating material, a shoulder formed integral with the plate around the aperture adjacent one face of the plate, a metallic flanged collar par-, tially embedded in said plate around the aperture and having a portion extending from the other face of said plate, a jewel seated in said collar and resting upon said shoulder, said portion being turned over upon said jewel to hold it in place.

5. The method of mounting ajewelbulls eye in an insulating plate,,comprising molding' the plate with an aperture and afianged collar embedded therein around said aper v ture, and during the molding, forming a shoulder; around the aperture at the front face of the plate, inserting the jewel in said collar from the rear of said plate, and then turning over a portion of said collar upon;

said jewel to hold it in place,

In testimony whereof I have signed my name to this specification.

ARVID H, NERO;

Images